[91Bvaxlt]0README.ALSO

INFORMATION REGARDING THE VAX SIG DECUS TAPES

	VAX Systems SIG DECUS Symposia tapes have come out of every 
symposium since the Spring of 1979:

directory   contents                  - - number of - -    size 
                                      directories files

[VAX000]    General information              x      xx     xxxx

[VAX79A]    Spring 1979 tape                19     516     9486
[VAX79B]    Fall 1979 tape (San Diego)       9     148     1762
[VAX80A]    Spring 1980 tape (Chicago)      19     421     5259
[VAX80B]    Fall 1980 tape (San Diego)      19     294     6945
[VAX81A]    Spring 1981 tape (Miami)        27     513     8650
[VAX81B]    Fall 1981 tape (Los Angeles)    67    1255    20218
[VAX82A]    Spring 1982 tape (Atlanta)      72    1230    27838
[VAX82B]    Fall 1982 tape (Anaheim)       147    2711    54668
[VAX83A] and [VAX83B]
            Spring 1983 tapes (St.Louis)                  96099
[VAX83C] and [VAX83D]
            Fall 1983 tapes (Las Vegas)    165    2804    73568
[VAX84A] AND [VAX84B]
            Spring 1984 tapes (Cincinnati) 299	  5629	 109703
[VAX85A]    Spring 1985 tapes
[VAX85B]       (New Orleans)               128    4824    63086
[VAX85C]    Fall 1985 tapes                157    2445    57549
[VAX85D]       (Anaheim)                    85    2166    60828
[VAX86A]    Spring 1986 tapes              193    2561    54037
[VAX86B]       (Dallas)                     69    2171    59647
[VAX86C]    Fall 1986 tapes		   277    2815    47330
[VAX86D]       (San Francisco)		   151    2498    54048
[VAX87A]    Spring 1987 tapes              262    3608    50342
[VAX87B]       (Nashville)                  60    1107    62579
[VAX87C]    Fall 1987 tapes                176    2490    42295
[VAX87D]       (Anaheim)                    62    1571    61340
[VAX87E]       (3 reels)                   126    1985    54020
[VAX88A1]   Spring 1988 tapes		    61    1052    49077
[VAX88A2]      (Cincinnati)                133    1728    50273
[VAX88A3]      (4 reels)                    70    1557    50621
[VAX88A4]                                   31    1015    66196
[VAX88B1]   Fall 1988 tapes		    91	  2028	  43744
[VAX88B2]      (Anaheim)		   134    1571    48726
[VAX88B3]      (5 reels)		   138	  1956	  43188
[VAX88B4]				    20	   303    55000
[VAX88B5]				    38	  1515    55852
[LT89A]	    Spring 1989 tapes		    37     788    57832
[VAX89A1]      (Atlanta)		   122	  2074    42948
[VAX89A2]      (4 reels)		   163    2439    56448
[VAX89A3]      (with L&T Sig)		    85    1405    58031
[DECUSLIB]  Fall 1989 Tapes		     3	    52     5618
[LT89B1]       (Anaheim)		    34	   790    63116
[LT89B2]       (4 reels)                    27     464    60742
[VAX89B1]      (With L&T Sig)               82    1607    49367
[VAX89B2]   				   151    2342    61732
[LT90A]     Spring 1990 Tapes		    92     969   144128
[VAX90A]       (New Orleans, 2 reels)	   257    3257   121739
[DECUSLIB]     (With L&T Sig) (6250BPI)	     3      22     2854
[LT90B1]    Fall 1990 Tapes		    88    1180   132542
[LT90B2]       (Las Vegas, 2 reels @6250)   12     171    85133
[VAX90B1]      (With L&T Sig)		   187    2191   133871
[VAX90B2]				   180    2498   119564
[LT91A]     Spring 1991 Tapes		   204	  3553   250965
[VAX91A]       (Atlanta; with L&T Sig)	   268    4354   209224
[DECUSLIB] and [91AVAXLT]		                  12709
[LT91B]     Fall 1991 Tapes                 39     532   260051
[VAX91B]       (Anaheim: With L&T Sig)     361    4134   267044
[91BVAXLT] and [DECUSLIB]                    8     204    13551

The sizes given are the approximate total size after the directories listed
in SUPERCEDE.TXT have been deleted.  (Note that SUPERCEDE.TXT has not been
updated since the Fall of 1981.)  On a disk with a cluster factor of 3 the
allocated size will be about 10% higher.  Also note that the sizes of the
more recent tapes are deceiving because of the extensive use of compression.

	You are free, of course, name the root directories anything you
want to.  The above names were chosen to put the creation date in the name
and at the same time make the lexical order of the names correspond to
their calandar order. 

	Note that as of Spring 1990, a severe space crunch with no clean
way to split the distribution into 1600 BPI sized pieces led to directory
trees being sized for TK50. The collection in Spring 1991 is in an L&T
part and a VAX part, each of which fits on one reel at 6250, but the
combined collection requires two reels at 6250 BPI. Somewhat less compression
than was done in Spring 1990 was done for Fall 1990. The Spring 1991
compression compares with that of Fall 1990. By the 1991 tapes, distribution
on TK50 was deemed too constrained, so that the tapes were sized so that
the VAX and L&T parts fit each on one 9 track reel at 6250 BPI (limit is
around 290,000 blocks for this.)

A description of some of the files contained in [91BVAXLT]

	000README.TXT - General information about this tape.

	0README.ALSO - This file.

	AAAREADME.91B_LT
	AAAREADME.91B_VAX - The AAAREADME.TXT files from the [LT91B]
		and [VAX91B] trees respectively concatenated into one
		file per tree. By convention, the AAAREADME files provide
		an overview of the contents of each top level directory.
		Almost every submission has additional documentation in
		AAAREADME.DOC or .1ST or somethingelse.DOC, .TXT, .MEM
		(or a .RNO which can be made into a .MEM with RUNOFF),
		or a .1ST.

	ABSTRACT.TXT -	 A short description of the submissions on this tape.
		(The abstract submitted to the DECUS Library.)

	BUILDREADV.COM - A command file to build one large AAAREADME.nnnn_VAX
		file from all the AAAREADME.TXT files on the directory tree.
		This command file checks file attributes and creates a uniform
		output file. BUILDREADL.COM builds the AAAREADME.nnnn_LT
		files; the first is for [VAXxxx...] trees and the second for
		[LTxxxx....] trees. They are almost identical.

	COPYTREES.COM - An easy (and consistent) way to copy a VAX SIG tape 
		(or tapes) from disk to tape.  COPYTREES uses TREESIZE.COM 
		and TREETAPE.COM.  It uses VAXyys.SIZ if it exists or creates 
		a new one if it does not. Note: the preferable way to arrange
		to copy VAX SIG tapes is by using the BACKUP utility.

	COPYTAPES.COM - An easy (and consistent) was to copy VAX SIG tapes
		from tape to tape. This procedure generally will fail now
		due to large block sizes needed to fit everything on tape.
		Use of VMSTPC or TCOPY (on [91Bvaxlt.tools]) is recommended
		for copying VAX SIG tapes now.

	[.OLD_AAAREADME] - AAAREADME.TXT's for the last several tapes.

	SUBMIT.TXT and TEMPLATE.RNO - Useful information for preparing
		a submission to a symposium tape.


	Glenn C. Everhart
	25 Sleigh Ride Road
	Glen Mills PA 19342 USA
	215 358 3866 home
	215 354 7610 work
	Everhart@Arisia.dnet.GE.com

